Playboy Enterprises' plan to introduce adult entertainment for mobile phones next year may leave some people wondering. Under an agreement with Seattle-based Dwango Wireless, Playboy plans to sell adult mobile-phone content in the United States and Canada for the first time early next year. The deal, announced Thursday, calls for Dwango to develop and deliver Playboy-theme games, images, video clips, voice clips and ring tones.

The wireless-entertainment firm has similar arrangements with ESPN and Rolling Stone, and distributes that content to subscribers through agreements with major wireless carriers such as Cingular, Nextel, T-Mobile and Verizon. The Playboy deal makes for some strange bedfellows, however. Dwango also has a distribution deal with Beliefnet, a religious Web site that features meditation guides and prayers of the day.